Apparatus for liquefaction and purification of sewage.



No. 874,542. PATEN-T'ED DEC. 24, 1907. w

0. w-.' RUSSELL. APPARATUS FOR LIQUEPAGTION AND PURIFICATION OF SEWAGE} APPLICATION FILED JUNB ZQ. 1907.

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arrow W130 CORNELIUS W. RUSSELL, OF BURLINGTON, IOWA.

APPARATUS FOR LIQUEFACTION AND PURIFICATION OF SEWAGE.

Specification of Letters Patent.

Patented Dec. 24, 1907.

Application filed June 20. 1907. Serial No. 379,932-

ratus for Liquefaction and Purification of Sewage; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and end with the upper end of said cell and at its use the same.

This invention has relation to new and useful improvements in apparatus for promoting the liquefaction and purification of sewage and has for its object to provide a simple and economical apparatus for automatically promoting the liquefaction and urification of sewage after being discharged cm the house so that the same may be used for watering gardens or other purposes.

. With'the foregoing and other objects in View which will appear as the natur of the invention is better understood, the invention consists in certain novel features ofconstruction, combination and arrangement of parts as will be hereinafter fully described and claimed.

In the accompanyin drawings, the n ure is a central longitudinal sectional'view o the apparatus.

As shown in the-accompanying drawings, 1 indicates a cell of vitreous, clay sewer pipe or other suitable material mounted in an upright position on the top and near one end of a suitable base 2 preferably of cement and having its upper open end covered or sealed by an air-tig t. cover 3 of cement or other suitable material. A11 inlet pipe 4 having a' trapnear its inner end communicates at said op osite end with the house sewage.

n the operation of the invention, the sewage passes through the inner end of said pipe 4 to the cell 1, the solids covered with nullions of bacteria falling to the bottom and the foul air from the sewage rising to the top of the-cell. As soon as the pressure in said cell becomes suflicient by the foul air and discharge of sewage therein, the water in the sewage is forced into a second cell 6 also mounted on said base adjacent said cell 1 'the cell 1.

through a pipe 7 having a trap 8 which communicates at opposite ends with the lower end of said cell. Said cell 6 is also made from a piece of vitreoussewerpipe and is provided with an air-tight cover 9 of cement or other suitable material and it is in this cell that the bacteria are fed and kept alive by the accumulation of sewage and foul air from It is principally in this cell that the bacteria do their work of devourirg all vegetable matter. As the solidanaterial is gradually decomposed or broken up, bubbles of gas are formed which collect about the fragments and cause them to rise to the surface where a large portion of the gas escapes and the solid matter again sinks to the bottom of the cell. This rising and falling of the solid matter continues until it is entirely decomposed. During the decomposition of this matter, a scum begins to form on the surface of the water and it is. then that the bacteria vigorously attack the solid matter and active decomposition begins. .After amounted on said base adjacent said cell 6 and having its upper end scaled or covered by an air-tight cover 12 of cement or other suitable material. Communication between the lower ends of said cells 6 and 11 respectively is established by means of a pipe 13 having acentral trap 14. y

15 indicates a siphon having a vertical downwardly extending inlet end 16 working in the upper end of said cell 11 and a horizontal outlet end 17. As' the clear water or effluent rises in said cell 11 it compresses the air in the upper end thereof and after the water has risen to a point sufficiently above the inlet end 16 of the siphon, the comsame and further dischargev of the water from said cell is stopped until it has again arisen therein to a sufficient point above the inlet end of the siphon to create a sufficient pressure in the cell to cause it to again flow through the siphon. 7

Having thus described my invention, What I claim as new is:

In. an apparatus of the character described, a series of upright substantially air-tight cells, trapped pipes from one to the other of the cells at their lower ends for establishing communication therebetween, a trapped inlet communicating With the upper end of the? first cell of the series, an outlet pipe connnunicating with the upper end of the last cell,

the ends of said inlet and outlet pipes upon the interior of the cells depending toward the bottom ofsaicl cells, and a lilterin the lower end of the last cell over the eml ol' the trappyed pipe at the bottom thereof.

in testimony whereof I have hereunto set my hand in presence of two subscribing wit- 20 nesses.

CORNELIUS R USSELL. Witnesses:

T. W. KmEoHBAUM, O. J. ARTZ. 

